On the Nature of the Breath Figures Self-Assembly in Evaporated Polymer Solutions: Revisiting Physical Factors Governing the Patterning

2012 ◽  
Vol 213 (16) ◽  
pp. 1742-1747 ◽  
Author(s):  
Edward Bormashenko ◽  
Sagi Balter ◽  
Doron Aurbach
Keyword(s):  
Self Assembly ◽  
Polymer Solutions ◽  
Physical Factors ◽  
Breath Figures

scholarly journals Breath-Figures Self-Assembly, the Versatile Method of Manufacturing Membranes and Porous Structures: Physical, Chemical and Technological Aspects

2017 ◽  
Author(s):  
Edward Bormashenko
Keyword(s):  
Self Assembly ◽  
Interfacial Phenomena ◽  
Physical Parameters ◽  
Porous Structures ◽  
Temporal Scales ◽  
Breath Figures ◽  
Spatial And Temporal Scales ◽  
Multi Scale ◽  
Physical Chemical ◽  
The Impact

The review is devoted to the physical, chemical and technological aspects of the breath-figures self-assembly process. Main stages of the process and the impact of the polymer architecture and physical parameters of the breath-figures self-assembly on the eventual pattern are covered. The review is focused on the hierarchy of spatial and temporal scales inherent for the breath-figures self-assembly. Multi-scale patterns arising from the process are addressed. The characteristic spatial lateral scales of patterns vary from nanometers to dozens of micrometers. The temporal scales of the process span from micro-seconds to seconds. The qualitative analysis performed in the paper demonstrates that the process is mainly governed by the interfacial phenomena, whereas the impact of inertia and gravity is negligible. Characterization and applications of polymer films manufactured with breath-figures self-assembly are discussed.

scholarly journals Formation of Hierarchical Porous Films with Breath-Figures Self-Assembly Performed on Oil-Lubricated Substrates

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3051 ◽  
Author(s):  
Edward Bormashenko ◽  
Yelena Bormashenko ◽  
Mark Frenkel
Keyword(s):  
Self Assembly ◽  
Large Scale ◽  
Silicone Oil ◽  
Contact Angles ◽  
Porous Films ◽  
Voronoi Tessellations ◽  
Breath Figures ◽  
Glass Substrates ◽  
Industrial Grade ◽  
Hierarchical Porous

Hierarchical honeycomb patterns were manufactured with breath-figures self-assembly by drop-casting on the silicone oil-lubricated glass substrates. Silicone oil promoted spreading of the polymer solution. The process was carried out with industrial grade polystyrene and polystyrene with molecular mass M w = 35 , 000 g m o l . Both polymers gave rise to patterns, built of micro and nano-scaled pores. The typical diameter of the nanopores was established as 125 nm. The mechanism of the formation of hierarchical patterns was suggested. Ordering of the pores was quantified with the Voronoi tessellations and calculation of the Voronoi entropy. The Voronoi entropy for the large scale pattern was S v o r = 0.6 − 0.9 , evidencing the ordering of pores. Measurement of the apparent contact angles evidenced the Cassie-Baxter wetting regime of the porous films.

scholarly journals Mechano-responsive polymer solutions based on CO2 supersaturation: shaking-induced phase transitions and self-assembly or dissociation of polymeric nanoparticles

2014 ◽  
Vol 50 (67) ◽  
pp. 9561-9564 ◽  
Author(s):  
Peter J. Roth ◽  
Jing Yang Quek ◽  
Yicheng Zhu ◽  
Bianca M. Blunden ◽  
Andrew B. Lowe
Keyword(s):  
Phase Transitions ◽  
Self Assembly ◽  
Polymer Solutions ◽  
Polymeric Nanoparticles ◽  
Nanoparticle Formation ◽  
Soda Water ◽  
Responsive Polymer

Shaking solutions of tailored (co)polymers in soda water is shown to induce precipitation, nanoparticle formation, or polymer or nanoparticle dissolution.

Binary breath figures for straightforward and controllable self-assembly of microspherical caps

2016 ◽  
Vol 18 (19) ◽  
pp. 13629-13637 ◽  
Author(s):  
Jianliang Gong ◽  
Bingang Xu ◽  
Xiaoming Tao ◽  
Lei Li
Keyword(s):  
Self Assembly ◽  
Breath Figures ◽  
Breath Figure

A binary breath figure approach of using water and methanol has been developed for controllable self-assembly of microspherical caps.

Surfactant Self-Assembly Structures at Interfaces, in Polymer Solutions, and in Bulk: Micellar Size and Connectivity

2018 ◽  
pp. 101-126 ◽  
Author(s):  
Björn Lindman ◽  
Fredrik Tiberg ◽  
Lennart Piculell ◽  
Ulf Olsson ◽  
Paschalis Alexandridis ◽  
...  
Keyword(s):  
Self Assembly ◽  
Polymer Solutions ◽  
Micellar Size

Applications of the Porous Structures Obtained with the Breath-Figures Self-Assembly

2020 ◽  
pp. 207-228
Author(s):  
Juan Rodríguez-Hernández ◽  
Edward Bormashenko
Keyword(s):  
Self Assembly ◽  
Porous Structures ◽  
Breath Figures

scholarly journals Formation of Hierarchical Porous Films with Breath-Figures Self-Assembly Performed on Oil-Lubricated Substrates

2019 ◽  
Author(s):  
Edward Bormashenko ◽  
Yelena Bormashenko ◽  
Mark Frenkel
Keyword(s):  
Self Assembly ◽  
Silicone Oil ◽  
Contact Angles ◽  
Porous Films ◽  
Voronoi Tessellations ◽  
Breath Figures ◽  
Glass Substrates ◽  
Industrial Grade ◽  
Hierarchical Porous ◽  
Entropy Measurement

Hierarchical honeycomb patterns were manufactured with the breath-figures self-assembly by drop-casting on the silicone-oil lubricated glass substrates. Silicone oil promoted spreading of the polymer solutions. The process was carried out with the industrial grade polystyrene and polystyrene with the molecular weight Mw=35.000. Both of polymers gave rise to the patterns, built from micro- and nano-scaled pores. Ordering of the pores was quantified with the Voronoi tessellations and calculating the Voronoi entropy. Measurement of the apparent contact angles evidenced the Cassie - Baxter wetting regime of the porous films.

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